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Michael Black
OpenXG UE
Commits
1d4a644d
Commit
1d4a644d
authored
Jan 17, 2019
by
Robert Schmidt
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F1AP: on UEContextRelCmd, DU distinguishes whether UE is out of sync
parent
0acb3d47
Changes
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43 additions
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22 deletions
+43
-22
openair2/F1AP/f1ap_du_ue_context_management.c
openair2/F1AP/f1ap_du_ue_context_management.c
+43
-22
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openair2/F1AP/f1ap_du_ue_context_management.c
View file @
1d4a644d
...
...
@@ -675,33 +675,22 @@ int DU_handle_UE_CONTEXT_RELEASE_COMMAND(instance_t instance,
"RNTI obtained through DU ID (%x) is different from CU ID (%x)
\n
"
,
rnti
,
ctxt
.
rnti
);
int
UE_out_of_sync
=
0
;
for
(
int
n
=
0
;
n
<
MAX_MOBILES_PER_ENB
;
++
n
)
{
if
(
RC
.
mac
[
instance
]
->
UE_list
.
active
[
n
]
==
TRUE
&&
rnti
==
UE_RNTI
(
instance
,
n
))
{
UE_out_of_sync
=
RC
.
mac
[
instance
]
->
UE_list
.
UE_sched_ctrl
[
n
].
ul_out_of_sync
;
break
;
}
}
/* We don't need the Cause */
/* Optional RRC Container: if present, send to UE */
F1AP_FIND_PROTOCOLIE_BY_ID
(
F1AP_UEContextReleaseCommandIEs_t
,
ie
,
container
,
F1AP_ProtocolIE_ID_id_RRCContainer
,
false
);
if
(
ie
)
{
struct
rrc_eNB_ue_context_s
*
ue_context_p
;
ue_context_p
=
rrc_eNB_get_ue_context
(
RC
.
rrc
[
ctxt
.
module_id
],
ctxt
.
rnti
);
pthread_mutex_lock
(
&
rrc_release_freelist
);
for
(
uint16_t
release_num
=
0
;
release_num
<
NUMBER_OF_UE_MAX
;
release_num
++
)
{
if
(
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
==
0
)
{
if
(
ue_context_p
->
ue_context
.
ue_release_timer_s1
>
0
)
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
=
1
;
else
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
=
2
;
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
rnti
=
ctxt
.
rnti
;
// TODO: how to provide the correct MUI?
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
rrc_eNB_mui
=
0
;
rrc_release_info
.
num_UEs
++
;
LOG_D
(
RRC
,
"Generate DLSCH Release send: index %d rnti %x mui %d flag %d
\n
"
,
release_num
,
ctxt
.
rnti
,
0
,
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
);
break
;
}
}
pthread_mutex_unlock
(
&
rrc_release_freelist
);
if
(
ie
&&
!
UE_out_of_sync
)
{
/* RRC message and UE is reachable, send message */
const
sdu_size_t
sdu_len
=
ie
->
value
.
choice
.
RRCContainer
.
size
;
mem_block_t
*
pdu_p
=
NULL
;
pdu_p
=
get_free_mem_block
(
sdu_len
,
__func__
);
...
...
@@ -737,7 +726,39 @@ int DU_handle_UE_CONTEXT_RELEASE_COMMAND(instance_t instance,
break
;
}
}
struct
rrc_eNB_ue_context_s
*
ue_context_p
;
ue_context_p
=
rrc_eNB_get_ue_context
(
RC
.
rrc
[
ctxt
.
module_id
],
ctxt
.
rnti
);
if
(
ue_context_p
&&
!
UE_out_of_sync
)
{
/* UE exists and is in sync so we start a timer before releasing the
* connection */
pthread_mutex_lock
(
&
rrc_release_freelist
);
for
(
uint16_t
release_num
=
0
;
release_num
<
NUMBER_OF_UE_MAX
;
release_num
++
)
{
if
(
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
==
0
)
{
if
(
ue_context_p
->
ue_context
.
ue_release_timer_s1
>
0
)
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
=
1
;
else
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
=
2
;
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
rnti
=
ctxt
.
rnti
;
LOG_W
(
DU_F1AP
,
"add rrc_release_info RNTI %x
\n
"
,
ctxt
.
rnti
);
// TODO: how to provide the correct MUI?
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
rrc_eNB_mui
=
0
;
rrc_release_info
.
num_UEs
++
;
LOG_D
(
RRC
,
"Generate DLSCH Release send: index %d rnti %x mui %d flag %d
\n
"
,
release_num
,
ctxt
.
rnti
,
0
,
rrc_release_info
.
RRC_release_ctrl
[
release_num
].
flag
);
break
;
}
}
pthread_mutex_unlock
(
&
rrc_release_freelist
);
ue_context_p
->
ue_context
.
ue_release_timer_s1
=
0
;
}
else
if
(
ue_context_p
&&
UE_out_of_sync
)
{
/* UE exists and is out of sync, drop the connection */
mac_eNB_rrc_ul_failure
(
instance
,
0
,
0
,
0
,
rnti
);
}
else
{
LOG_E
(
DU_F1AP
,
"no ue_context for RNTI %x, acknowledging release
\n
"
,
rnti
);
}
/* TODO send this once the connection has really been released */
f1ap_ue_context_release_cplt_t
cplt
;
cplt
.
rnti
=
ctxt
.
rnti
;
DU_send_UE_CONTEXT_RELEASE_COMPLETE
(
instance
,
&
cplt
);
...
...
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